/* 
 * Android Operation Queue
 * http://code.google.com/p/operation-queue/
 * 
 * Copyright (C) 2012 Dong-u Seo
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *     
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.minz.opqueue;

import android.os.AsyncTask;

/**
 * 
 * @author dong_u
 *
 * @param <Params>
 * @param <Progress>
 * @param <Result>
 */
public abstract class Operation< Params , Progress , Result > 
extends AsyncTask< Params , Progress , Result >{
	private OperationQueue queue;
	protected Params[] params = null;

	public Operation(Params... params){
		this.params = params;
	}
	
	protected final void setQueue(OperationQueue queue){
		this.queue = queue;
	}
	
	protected void onCancelled() {
		super.onCancelled();
		if(queue != null){
			queue.removeOperationOnCancel( this );
		}
	}
	
	protected void onPostExecute( Result result ) {
		super.onPostExecute( result );
		if(queue != null){
			queue.removeOperationOnPost( this );
		}
	}
}
